With means to bias valve open

Subclass of:

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application number

Description

Number of patent applications / Date published

251129020

With means to bias valve open

14

20080210896

Electromagnetically Controllable Actuator - Disclosed is a method of manufacture or adjustment of an electromagnetically drivable actuator, which is appropriate for controlling the flow of a fluid, such as a hydraulic or pneumatic analog valve or an analogized switch valve (

Fast response check control valve - A check valve for a vehicle actuator includes a hardened valve seat insert pressed into a non-hardened housing. The insert defines a lobed valve seat against which fluid urges a valve element, with the valve element being distanced from the valve seat by a rod to open the valve when an actuating coil is deenergized. When the coil is energized the rod is moved away from the valve element, allowing fluid pressure to urge the element against the seat to close the valve. The insert can be formed with a rod guide.

10-08-2009

20100051839

MAGNET VALVE - The invention relates to a solenoid valve comprising a magnetic assembly and a valve cartridge. The valve cartridge comprises a capsule, a valve insert connected to the capsule and an armature that is mobile in the capsule. The armature includes a tappet having a first closing element. A magnetic force produced by the magnetic assembly displaces the armature towards the valve insert. As a result, the first closing element sealingly plunges into a main valve seat. The valve insert is configured as a valve insert sleeve into which a valve sleeve including the main valve seat is disposed.

03-04-2010

20120248354

NORMALLY OPEN ELECTROMAGNETIC VALVE - A normally open electromagnetic valve includes: a fixed core; a movable core which is driven when excited; a valve seat member in the fixed core and having a funnel-shaped valve seat surface; a valve member disposed so that the valve member advances or retreats together with the movable core with one end of the valve member kept in contact with the movable core, and that the other end of the valve member closes or opens a flow passage by coming into contact with or separates from the valve seat surface; and a return spring. The fixed core has a cylindrical holding hole. The valve member advances or retreats being guided by the holding hole in sliding contact with the holding hole. The movable core has a projection which projects toward the fixed core and which is directly inserted into the holding hole.

Pressure control valve - A pressure control valve includes a valve body having an axial flow path, a valve seat integrated into the valve body, a retention cup positioned within the flow path, a spring received and guided by the flow passage, and an armature connected to the spring. The spring maintains the armature positioned in the retention cup keeping the flow path open. A solenoid moves the armature from the retention cup to the valve seat blocking the flow path. The pressure control valve may be used for controlling a high-pressure single-piston pump and has the capability for controlling pressure or flow with a commanded input electrical voltage or current, while simplifying the component design and reducing the amount of components and, thus, the complexity of the assembly process. The pressure control valve may be used, for example, to manage the fuel rail pressure of a gasoline direct injection internal combustion engine.

06-04-2009

20080197308

SOLENOID VALVE - Disclosed is a solenoid valve having a magnet unit and a valve cartridge having a capsule, an armature guided longitudinally in the capsule and connected to a sealing pin guided longitudinally inside a valve insert, and a valve body with a sealing seat; a magnetic force generated by the magnet unit moves the armature together with the sealing pin from an initial position toward the valve body counter to the force of a return spring, causing the sealing pin to move into and close the sealing seat in an end position, where the initial position represents a maximum volumetric flow between a valve inlet and a valve outlet. A spring support is embodied and situated so that the return spring is supported outside the volumetric flow and presses the armature into the initial position against the capsule, and the inlet and outlet are embodied and situated so that the direction of the volumetric flow assists the closing motion of the armature with the sealing pin.

08-21-2008

20140217317

ELECTROMAGNETIC VALVE - An electromagnetic valve includes a driving portion, a valve body, and a valve element. The driving portion generates a magnetic attractive force according to an energization. The valve body has an orifice through which a fluid flows, and a valve seat around an opening portion of the orifice. The valve element displaces according to the magnetic attractive force and a fluid force that is applied from the fluid, to vary a passage area between the valve element and the valve seat. When the valve element is placed at a position separated farthest from the valve seat, the passage area between the valve element and the valve seat is less than or equal to a passage area of the orifice.

08-07-2014

20090050829

Low leak poppet solenoid - A dual poppet low leak variable bleed solenoid valve, including a solenoid portion with an adjustable end cap disposed through the solenoid. Exhaust ports are disposed about the end cap. A hydraulic portion has a valve housing that is connectable to the solenoid portion. The hydraulic portion has a control volume formed within, and a supply port is connected through the valve housing. A valve shaft is slidably disposed through the solenoid portion and extends longitudinally into the hydraulic portion. A first end of the valve shaft terminates in the solenoid portion forming a primary valve, and a second end of the valve shaft terminates in the hydraulic portion forming a secondary valve. The valve shaft further has a hollow channel disposed through the valve shaft to allow the passage of a fluid medium between the first end and second end of the valve shaft.

02-26-2009

20090026396

Adjustable shutoff valve - A gas valve assembly includes a solenoid coil, a linearly actuated plunger, and a stop member. The plunger is disposed in the coil so that a gap exists between the plunger and the stop member at a deenergized condition of the solenoid. The assembly includes a valve having a port and a closing member. The closing member blocks the port in a closed position corresponding to the de-energized condition of the solenoid, and slidably unblocks the port in an open position corresponding to the energized condition of the solenoid. An adjustable length member is coupled to the closing member and the plunger and has a portion accessible external to the valve assembly. The externally-accessible portion of the adjustable length member is adjustable to vary the size of the gap between the plunger and the stop member when the closing member is in the closed position.

01-29-2009

20140042347

IMPULSE DUTY CYCLE VALVES - A valve includes a valve housing having a fluid inlet and a fluid outlet with a longitudinal axis defined through the valve housing. The valve also includes a toggle mechanism configured and adapted to cycle flow from the fluid inlet to the fluid outlet through a plurality of different flow rates in response to repeated impulses. The toggle mechanism is also configured to hold flow rate steady between impulses.

System and method for controlling a solenoid valve, particularly for a system for variable actuation of the valves of an internal combustion engine according to a multi-lift mode - A solenoid valve, particularly of the type to be used for controlling a hydraulic system for variable actuation of the valves of an internal-combustion engine, has a valve element co-operating with a valve seat and a pusher element, separate from the valve element, which is pushed against the valve element by the movable core of the solenoid valve when the solenoid of the solenoid valve is energized in order to bring the valve element into contact with the valve seat. After de-energization of the solenoid, the time necessary for bringing back the pusher element into the resting condition in contact with the valve element is reduced thanks to the application of a braking current to the solenoid of the solenoid valve during the stage in which the movable core and the pusher element associated thereto displace in the direction opposite to the direction of the movement generated by the magnetic field of the solenoid, following upon de-energization of the solenoid valve.